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AP EAMCET2016PhysicsDual Nature of Matter

A photo sensitive metallic surface emits electrons when X-rays of wavelength fall on it. The de-Broglie wavelength of the emitted electrons is (Neglect the work function of the surface, m is mass of the electron, h is Planck's constant, c is the velocity of light)

Options

  1. A2 m c h
  2. Bh 2 m c
  3. Cm c h
  4. Dh m c

Correct answer

B. h 2 m c

Step-by-step solution

de-Broglie wavelength ₀= h p = h 2 m E_k And E_K=h v= h c _v= h 2 m h c = h 2 m c

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